爲什麼雄辯財產不存在於此收集實例？

Question

我有一個列ID表，和三個文本字段和型號名稱是郵政

public function up() 
{ 
    Schema::create('posts', function (Blueprint $table) { 
     $table->increments('id'); 
     $table->string('title', 256); 
     $table->string('slug', 256); 
     $table->text('body'); 
     $table->timestamps(); 
    }); 
} 

雖然從該表中獲取數據，並從控制器和視圖返回雄辯對象<p>{{$post}}</p>，這很好，但在訪問財產標題爲<p>{{$post->title}}</p>這是一個錯誤。

class BlogController extends Controller 
{ 
    public function single($slug){ 
     $post = Post::where('slug', '=', $slug)->get(); 
     //return $post; 
     return view('posts.single')->withPost($post); 
    } 
} 

錯誤：

Property [title] does not exist on this collection instance 

Answer 1

你應該得到的第一個元素不是集合：

public function single($slug){ 
    $post = Post::where('slug', '=', $slug)->first(); 
    //return $post; 
    return view('posts.single')->withPost($post); 
} 

Because get will always return a collection even if your query could only ever return a single row and first returns a single model instance